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B & K Proline 888-557 10″ Frost Free Sillcock Stem

Bright brass stem with brass screw black rubber washers stainless spring and metal washers.
Bright brass stem with brass screw black rubber washers stainless spring and metal washers.
Bright brass stem with brass screw black rubber washers stainless spring and metal washers.

chat iconWHAT OUR CUSTOMERS SAY…

“Hello, I was in the shop on Tuesday and was greeted and helped by a gentleman named Jackson. He was extremely helpful, friendly and it was really a pleasure to see a young man working in this industry with knowledge and kindness. I run my my own small business and was a first time customer at Noel’s, being greeted and cared for in that manner will definitely bring about my return. I want to send me sincerest gratitude to your team. Thanks again! ”
-Jimmy M.
10/21/2022

$24.87

 

The Mueller 888-557 is a ProLine replacement stem assembly for a 10-inch anti-siphon frost-free sillcock (outdoor faucet).

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 21557 Category: Tag:

B & K Products Frost Free Sillcock Stem

 

888-557

 

 

  • This is a replacement stem assembly used to control water flow in the anti-siphon frost-free sillcocks (also known as outdoor hydrants, hose bibbs, or spigots).
  • It is an integral part of the valve body, designed to provide key internal flow control and prevent back siphoning.
  • For 10″ faucet
  • Stem measures 13 1/2″ to 14″

 

UPC: 032888148598

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“I was very happy with Noel’s Plumbing. I was searching for a fairly rare part and saw it listed on their website. After placing my order, I was informed that the item was actually on backorder. Noel’s Plumbing was upfront and honest right away, letting me know it might take some time to arrive. Throughout the wait, they consistently kept me updated, which I really appreciated. When the part finally came in, they shipped it out immediately. It arrived exactly as described and was precisely what I needed. Excellent communication, honesty, and follow-through. Thank you, Noel’s Plumbing! ”
-Dave F.
04/04/2026